Stock Repurchases (Details) - USD ($)		3 Months Ended		6 Months Ended
		Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Mar. 05, 2020
Equity, Class of Treasury Stock [Line Items]
Common stock repurchased, shares		16,226	403,953	49,261	1,207,688
Common stock repurchased, value		$ 7,800,000	$ 229,700,000	$ 22,700,000	$ 652,700,000
Increase in number of shares authorized for repurchase						2,000,000
Remaining number of shares authorized for repurchase		142,267		142,267
Open Market [Member]
Equity, Class of Treasury Stock [Line Items]
Common stock repurchased, shares	[1]	15,802	403,953	15,802	1,205,943
Common stock repurchased, value	[1]	$ 7,600,000	$ 229,700,000	$ 7,600,000	$ 651,700,000
Other [Member]
Equity, Class of Treasury Stock [Line Items]
Common stock repurchased, shares	[2]	424	0	33,459	1,745
Common stock repurchased, value	[2]	$ 200,000	$ 0	$ 15,100,000	$ 1,000,000.0

[1] Represents repurchases under authorizations by the board of directors for the repurchase of shares by us from time to time in the open market through privately negotiated transactions, through block trades, pursuant to trading plans adopted in accordance with Rule 10b5-1 under the Securities Exchange Act of 1934 or otherwise. On September 28, 2021, the board of directors authorized the repurchase of up to two million shares of our common stock in addition to the board’s prior authorizations. As of June 30, 2023, we had authorization to repurchase 142,267 shares of our common stock.

[2] Represents shares of common stock released to us by team members as payment of tax withholdings upon the vesting of restricted stock units and the conversion of restricted stock units to common stock.